You are clearly out of your range here but I will make this simple.
Omicron has greatly reduced symptoms and severity. But its still COVID-19, which is a known killer. If we dont hold it off it will mutate again, and God knows what we will be looking at the next time.
We arent trying to stop the sniffles. We are trying to stop what may come next.
"It's COVID" is meaningless. The only thing that matters is how harmful it is.
If it mutates again (it will), it will almost assuredly do what other viruses do. They become less severe, which helps their survival. That has been the case with every strain of this virus so far.
COVID spreads like wildfire regardless of vaccination status. There is no level of vaccination coverage that will prevent mutation. It will be around forever, and it will continue to become weaker and weaker until we should be treating it like the common cold (another coronavirus that we cannot eliminate).